incusd: Fix function shadowing #708

Job	Run time
System (stable, cluster, dir)	56s
Client (oldstable, ubuntu-latest)	58s
Documentation	59s
System (stable, cluster, btrfs)	57s
Code (oldstable)	59s
Client (oldstable, macos-latest)	46s
System (stable, cluster, lvm)	56s
Code (stable)	59s
Client (oldstable, windows-latest)	42s
System (stable, cluster, zfs)	57s
Code (tip)	57s
Client (stable, ubuntu-latest)	58s
System (stable, cluster, ceph)	57s
Client (stable, macos-latest)	58s
System (stable, cluster, random)	57s
Client (stable, windows-latest)	42s
System (stable, standalone, dir)	57s
System (stable, standalone, btrfs)	55s
System (stable, standalone, lvm)	56s
System (stable, standalone, zfs)	56s
System (stable, standalone, ceph)	53s
System (stable, standalone, random)	55s
System (oldstable, cluster, dir)	56s
System (oldstable, standalone, dir)	57s
System (tip, cluster, dir)	57s
System (tip, standalone, dir)	57s
	23m 57s

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